Oil-supply system for burners.



No. 677,322. I Patented June .25, l90l.

A. PARKER-SMITH.

OIL SUPPLY SYSTEM FOR BUBNERS.

(Application filed Oct. 12, 1900.)

(No Model.) 2 Sheets-Sheet I.

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1 i h I ii Lg F vb :i s u i WITNESSES: INVENTOR No. 677,322. PatentedJune 25, mm. A.PABKEB-SMITH. OIL SUPPLY SYSTEM FOR BURNERS.

(Application filed Oct. 12, 1900.)

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UNITED STATES PATENT OFFICE.

AUGUSTUS PARKER-SMITH, OF NEW YORK, N. Y., ASSIGNOR TO THE KITSONHYDROOARBON HEATINGo: INCANDESOENT LIGHTING COM- PANY, OF PHILADELPHIA,PENNSYLVANIA, AND CHARLESTON,WEST

VIRGINIA.

OIL-SUPPLY SYSTEM FOR BURN-ERS.

srncrrrca'rron formingpart of Letters Patent No, 677,322, dated June 25,1901.

Application filed October 12; 1900. Serial No. 32,868. (No model.)

To (all whmn it may concern: I

Be it known that I, AUGUSTUS PARKER- SMITH, a citizen of the UnitedStates of America, and a resident of New York, county of New York, Stateof New York, have invented certain new and usefulImprovements in Oil-Supply Systems for Burners, of which the following is a specification.

Myinvention relates to liquid-pressure systems; and it more specificallyconsists of an improved means for supplying liquid, such as fluidhydrocarbon, through a system of piping for vapor burning apparatus andpromptly freeing said system of piping from the contained liquidwhenever the supply has been shut off.

In systems of vapor-burning apparatus it is customary to supply one ormore lamps or stoves from a tank containing fluid hydrocarbon underpressure. This pressure is usually produced by pumping a quantity ofcompressed air into said tank, so that it will force the hydrocarbonthrough the system of piping to the consuming apparatus. One means ofproducing this compressed-air pressure is an ordinary pump operatingeither upon the liquid or upon the air and forcing either or both intothe tank until asufficient quantity of each is in the tank to generatethe desired pressure. In some cases the oil is introduced into the tankotherwise than through the pump, and the latter is merely used forforcing in the necessary amount of air in the ordinary operation; but myinvention applies to both of the above-described arrangements ofapparatus.

Ihe preferred form of apparatus embodying my invention is illustrated inthe accompanying two sheets of drawings, in which- Figure 1 is a frontelevation, with parts broken away, showing my invention applied to anapparatus in which the pump is used for handling both fluid hydrocarbonand air. Fig. 2 is a side elevation of the same with parts broken away.Fig 3 is a modification in which the pump is primarily designed to forcein air only.

Throughout the drawings like referencefigures refer to like parts. Astorage-tank 1, usually formed of steel, contains the air andhydrocarbon, the latter being normally at or about the level of dottedline 24:. The'airpressure in the upper portion of the tank forces oil upthrough the pipe 2, through a filter 2 usually employed, and out throughvalve connection 5 to a system of piping fed by the pipe 6. Apressure-gage 3 is usually employed, the connection with which iscontrolled by the valve 4:.

In the preferred form of apparatus the force-pump 7 is supported fromone side of the tank, said pump having a double-acting plunger 8,manipulated by the usual pistonrod and handle 9. A connection 10 extendsfrom the lower end of the pump-cylinder, to which a flexible tube 10 maybe attached, the end of which may be inserted in an oilcan 11 or othersource of liquid-supply. This connection 10 is controlled by the valve12.

13 is a ball-valve acting as a check-valve to the suction connectionfrom the pipe 10.

The discharge-orifice 1 1 of the pump is connected with the storage-tank1 and controlled by the ball-valve 15, which is retained in position bythe cage 19 and acts as a check-valve to prevent the pressure within thetank from being transmitted back to the pump-cylinder. The hand-valve 25serves to positively close this discharge-orifice, if desired.

The tube 16, of small diameter, approximately of the same diameter astube 6, as shown on the drawings, is connected to a branch of thesuction-pipe of the pump and extends to the system of piping 6, beingcontrolled by the hand-valve 17.

18 is a plug closing an opening in the bottom casting of the pump,through which access to the valves may be had and which also serves forlimiting the motion of the ballvalve 13.

In the construction shown in Fig. 3 the pump 7 is not rigidly connectedto the storage-tank and is primarily used for forcing air into saidtank, the oil being poured in or otherwise forced into the tank throughthe plug-closed opening 23.- In such second construction thesuction-inlet to the pump has a valve-controlled opening 20 to theatmosphere and a branch connection through the tube 16,

of small diameter, to the system of piping 6,

ICQ

as before, said connection being controlled by a valve 17. Theconnecting-pipe 21 extends from the discharge-orifice of the pump to thetank 1 and is controlled by the valve 22.

The method of operation of my invention is as follows: In the form shownin Figs. 1 and 2 the valve 12 is opened and the valve 17 closed when thetank is to be charged. The tube 10 being inserted in the source of theoil-supply and the pump operated, oil is forced into the tank until thenecessary quantity has been introduced. The tube 10 is then withdrawnfrom the oil-can 10, and further operation of the pump forces in air,which rises to the top of the storage-tank and is there compressed untilthe desired pressure is shown upon the gage 3. The valve 12 is thenclosed and the system ready for operatiou, when the valve 5 is opened,oil being then forced into the system of piping 6. WVhen it is desiredto shut off the lamps, the valve 5 is closed, the valve 17 opened, andone stroke of the pump will then usually suffice to suck back from thesystem of piping 6 all the contained oil and return the same to thestorage-tank 1. In the construction shown in Fig. 3 the operation is thesame except that oil is introduced through the opening 23 into the tankand then air pumped in by the pump 7, the air connection 20 being openand the valve 17 being closed. WVhen it is desired to shut 0E thelampsand pump back the oil, the valve 5 and the valve 20 are closed and thevalve 17 opened, and one stroke of the pump will then draw the oil backfrom the system of piping 6 and force it into the tank.

The advantages of my invention reside in the fact that there is directconnection from the pump to the system of piping, consisting only of ashort tube of small diameter, which can be easily and readily pumped outat a fraction of a stroke of the pump,'the cameity of the pump beinglarge relative to the capacity of the system of fine tubes 6 and thefine tube 16; but a portion of the stroke is necessary, usually, tocomplete the emptying operation and draw back all of the oil from thepiping into the pump, where a second stroke of the piston willimmediately force it into the tank.

A further advantage of the form shown in Figs. 1 and 2 resides in thefact that the arrangement can be attached to the present standard formof pump by the simple addition of short pipe 16,-valve 17, and the two Tconnections at the ends of said pipe 16.

Having therefore described my invention, what I claim as new, and desireto protect by Letters Patent, is

1. Thecombinationofaliquid-storagetank, a system of piping to whichliquidis supplied from said tank, and a pump which has itsdischarge-orifice connected to said tank, said pump having a directvalve-controlled suction connection with the first-mentioned system ofpiping, said connection consisting of a tube of approximately the samediameter throughout as the tubingof the system of piping first abovementioned.

2. The combination ofaliquid-storage tank, asystem of piping to whichliquid is supplied from said tank, and a pump which has itsdischarge-orifice connected to said tank, said pump having branchvalve-controlled suction connections, one of said connections extendingto a source of fluid-supply and the other to the first-mentioned systemof piping.

Signed at New York this 22d day of Sep-' tember, 1900. V

A. PARKER-SMITH. Witnesses:

W. H. PUMPHREY, JAMES A.- CAVANAGH.

